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Ethylene (Co)Polymerization with Metallocene Catalysts Encapsulated in Gel‐Type Poly(styrene‐ co ‐divinylbenzene) Beads
Author(s) -
Hong Sung Chul,
Rief Ursula,
Kristen Marc Oliver
Publication year - 2001
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20011101)22:17<1447::aid-marc1447>3.0.co;2-y
Subject(s) - metallocene , divinylbenzene , materials science , styrene , polymer chemistry , polymerization , post metallocene catalyst , catalysis , copolymer , ethylene , chemical engineering , polymer , organic chemistry , chemistry , composite material , engineering
Gel‐type poly(styrene‐ co ‐divinylbenzene) beads (PS bead) were used as a carrier to encapsulate metallocene catalysts through a simple swelling‐shrinking procedure. The catalytic species were homogeneously distributed in the PS bead particle. The catalyst exhibited high and stable ethylene polymerization and ethylene/1‐hexene copolymerization activity affording uniform spherical polymer particles (1 mm). Polymerization rate profiles exhibited slow initiation and stable increase in polymerization activity with time.